James decker



UNITED STATES PATENT OFFICE.

JAMES DECKER, OF REIDSVILLE, GEORGIA, ASSIGNOR T() HIMSELF AND A. I.MCRAE, OF SAME PLACE.

STAVE-MACHINE.

Specification of Letters Patent No. 25,603, dated September 27, 1859.

To all 'whom t may concern:

Be it known that I, JAMES DECKER, of Reidsville, in the county ofTatnall and State of Georgia, have invented a new and Improved Machinefor Making Staves for Pails, Tubs, &c.; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making a part of this specification,in which- Figure l, is an end view of my invention. Fig. 2, is a sidesectional view of ditto taken in the line m, Fig. l. Fig. 3, is a planor top view of ditto. Fig. 4, is a detached view of the cam distended orprojected in a horizontal plane. Fig. 5, is a diagram showing the mannerin which the st-aves are fed to the machine.

Similar letters of reference indicate corresponding parts in the severalfigures.

The object of this invention is to obtain a machine whereby staves forpails, tubs, etc., may be dressed, jointed, tongued and grooved, at oneoperation and withone and the same device.

The invention consists in the employment or use of concave and convexrotating cutters with a suitable bed-piece, tonguing and groovingcutters and a pressure roller and cam, combined and arranged for jointoperation substantially as hereinafter described, whereby the staves maybe dressed at both sides and perfectly finished, ready for immediate useas they leave the machine.

To enable those skilled in the art to fully understand and construct myinvention I will proceed to describe it.

A, represents a rectangular frame, which may be constructed in anyproper way to support the working parts of the machine. On the upperpart of the frame A, a shaft B, is placed transversely, said shafthaving convex cutters a, which rotate in an opening or space Z), whichdivides a longitudinal bed-piece C, into two parts c, d, one of which c,has a horizontal surface and the other d, a convex surface in thedirection of its width. On the frame A, there `are placed two uprightse, e, one at each side. These uprightsl form bearings for a shaftD,Wh1ch is parallel with the shaft B, and has concave cutters f,attached to it at about its center, said cutters being directly over thepart d, of the bed-piece C.

y E, is a shaft which is placed on th frame A. One end of this shaft hasits bearings in an uprightg, on the frame and the opposite end has itsbearing in a lever F, attached to one of the uprights e. On the shaft E,at about its center there is a cylindrical hub or projection G, to oneend of which a cam H, is attached, said cam being formed of a hollowcylinder secured to one end of the hub or projection and having itsouter projecting edge formed obliquely, as shown in Fig. 3, and formingif divided and distended a convex edge, as shown in Fig. 4. The hub orprojection G, is just in front of the concave cutters f, and over thepart CZ, of the bed-piece C.

In the back part of the frame A, two uprights J, J, are placed. Theseuprights are fitted on inclined guide rods L, 7L, which are slightlyinclined from horizontal lines as shown clearly in Fig. l.

In the uprights J, J, vertical shafts K, K',

are placed, one in each, and on the upper end y of shaft K, a cutterhead L, is placed provided with cutters for cutting the tongue and onthe shaft K, a cutter head L is placed provided with cutters for cuttingthe groove, a tongue being cut at one edge and a groove in the otheredge of each stave. The shafts K, K, may be rotated by belts from thedriving shaft M, and the shafts B, D, may be rotated by a single beltfrom said driving shaft.

The upright J, in which the shaft K, is placed is attached to a lever N,the lower end of which is secured in the frame A, by a. fulcrum pin z',the upper and opposite end bearing against the cam H. On the upperinclined guide rod 7i., of the upright J, of sha-ft K, a spiral springV, is placed, said spring having' a tendency to keep the cutter` head L,pressed toward the bedpiece C, or`

toward the edge of the stave, and the upper end of lever N, against camH.

The operation is as follows The boltsl or stuff from which the stavesare sawed are got out of proper dimensions, and motion, being given thedriving shaft M, by anyV ters a, f, it Will be seen dress the inner andouter surfaces of the bolts in concave and convex form, as shown in Fig.l, the stave being shown in red. The stave passes between the cutterheads L, L, which tongue and groove its edges. One cutter head L, beingmoved laterally by the action of the cam H, which is rotated inconsequence of the hub G, being pressed on the upper surface of thestave by hand Weights or any proper means. The cam H, during onerevolution moves the cutter head L, and consequently the shaft K, andupright J, out Ward and inward the length of their movement, and as thestaves for pails, tubs, etc, have one taper only from their top to theirbottom ends two staves are fed through the machine at each revolution ofthe cam H, and the staves are fed through alternately bottom and top endJforemost, see Fig. 5. By this arrangement the staves are dressed atboth sides, jointed and tongued and grooved, the lateral movement of thecutter head L, compensating for the taper of the stave, the cam H, beingmade to actuate said cutter in accordance With the taper. The

rods 71 IL, of the upright J, of the movable shaft K, may be adjusted ina more or less inclined position by having their outer ends fitted in avertical adjustable bar ax, in the frame A.

I do not claim the convex and concave cutters a, f, for dressingsimultaneously both sides of a stave, nor do I claim broadly andseparately the tongung and ygrooving cutters for they have beenpreviously used for operating on boards, flooring plank, etc; but havingthus described my invention,

What I do claim as new and desire to secure by Letters Patent, is,

The combination and arrangement of the convex and concave cutters al, f,bed-piece C, tonguing and grooving cutters in the heads L, L', and thecam H, attached to the pressure hub or roller G, and lever N, connectedwith said cam and the shaft K, of cutter head L, substantially as andforthe purpose set forth.

JAMES DECKER. Witnesses:

G. I. lWERRIMAN, JOI-11N PEARsoN.

